capZ

Microfilament cappingprotein (32-36 kD) found in Dictyostelium and Acanthamoeba and that binds to the barbed ends of thin filaments in the Z-disc of striated muscle. Widely distributed in vertebrate cells, though in non-muscle cells is predominantly in the nucleus. Identical to b -actinin. Some isoforms may bind to the pointed ends of microfilaments.

Microfilament — Actin cytoskeleton of mouse embryo fibroblasts, stained with Fluorescein isothiocyanate phalloidin Microfilaments ( or actin filaments) are the thinnest filaments of the cytoskeleton, a structure found in the cytoplasm of all eukaryotic cells.… … Wikipedia

Actin-binding protein — Actin binding proteins (also known as ABP) are proteins that bind to actin. This may mean ability to bind actin monomers, or polymers, or both.Many actin binding proteins, including α actinin, β spectrin, dystrophin, utrophin and fimbrin, do this … Wikipedia